== sanity test 398b: DIO and buffer IO race ============== 17:34:34 (1781213674) /usr/bin/fio 48+0 records in 48+0 records out 50331648 bytes (50 MB, 48 MiB) copied, 3.09129 s, 16.3 MB/s mix direct rw 4096 by fio with 4 jobs... mix buffer rw 4096 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) 4096B-4096B, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=187977: Thu Jun 11 17:35:50 2026 read: IOPS=22, BW=89.6KiB/s (91.7kB/s)(5992KiB/66908msec) clat (usec): min=44, max=687541, avg=24468.88, stdev=22373.94 lat (usec): min=45, max=687541, avg=24470.97, stdev=22373.37 clat percentiles (usec): | 1.00th=[ 62], 5.00th=[ 8356], 10.00th=[ 10552], 20.00th=[ 13304], | 30.00th=[ 15533], 40.00th=[ 18482], 50.00th=[ 21627], 60.00th=[ 24773], | 70.00th=[ 28705], 80.00th=[ 33424], 90.00th=[ 40109], 95.00th=[ 46400], | 99.00th=[ 79168], 99.50th=[104334], 99.90th=[160433], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 8, max= 159, per=24.91%, avg=89.19, stdev=24.55, samples=133 iops : min= 2, max= 39, avg=21.77, stdev= 6.13, samples=133 write: IOPS=23, BW=94.1KiB/s (96.4kB/s)(6296KiB/66908msec); 0 zone resets clat (usec): min=707, max=109501, avg=19056.11, stdev=16760.44 lat (usec): min=707, max=109502, avg=19057.40, stdev=16760.53 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1876], 10.00th=[ 2474], 20.00th=[ 3818], | 30.00th=[ 5932], 40.00th=[ 11469], 50.00th=[ 15139], 60.00th=[ 19268], | 70.00th=[ 24511], 80.00th=[ 32113], 90.00th=[ 42206], 95.00th=[ 50594], | 99.00th=[ 72877], 99.50th=[ 82314], 99.90th=[107480], 99.95th=[109577], | 99.99th=[109577] bw ( KiB/s): min= 23, max= 183, per=25.14%, avg=94.29, stdev=28.42, samples=132 iops : min= 5, max= 45, avg=23.05, stdev= 7.10, samples=132 lat (usec) : 50=0.20%, 100=0.85%, 250=0.55%, 500=0.03%, 750=0.07% lat (usec) : 1000=0.03% lat (msec) : 2=2.86%, 4=7.98%, 10=10.42%, 20=30.53%, 50=41.93% lat (msec) : 100=4.17%, 250=0.36%, 750=0.03% cpu : usr=0.08%, sys=14.36%, ctx=8087, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187978: Thu Jun 11 17:35:50 2026 read: IOPS=23, BW=92.7KiB/s (94.9kB/s)(5940KiB/64062msec) clat (usec): min=36, max=103616, avg=23458.51, stdev=12547.99 lat (usec): min=37, max=103617, avg=23460.82, stdev=12548.60 clat percentiles (usec): | 1.00th=[ 55], 5.00th=[ 8848], 10.00th=[ 10814], 20.00th=[ 13435], | 30.00th=[ 15795], 40.00th=[ 18482], 50.00th=[ 20841], 60.00th=[ 24249], | 70.00th=[ 27919], 80.00th=[ 32637], 90.00th=[ 39060], 95.00th=[ 47449], | 99.00th=[ 63177], 99.50th=[ 73925], 99.90th=[ 83362], 99.95th=[103285], | 99.99th=[103285] bw ( KiB/s): min= 31, max= 151, per=26.00%, avg=93.10, stdev=23.10, samples=126 iops : min= 7, max= 37, avg=22.75, stdev= 5.78, samples=126 write: IOPS=24, BW=99.1KiB/s (101kB/s)(6348KiB/64062msec); 0 zone resets clat (usec): min=1029, max=685039, avg=18252.20, stdev=23012.79 lat (usec): min=1031, max=685040, avg=18253.43, stdev=23012.75 clat percentiles (usec): | 1.00th=[ 1221], 5.00th=[ 1811], 10.00th=[ 2343], 20.00th=[ 3556], | 30.00th=[ 5538], 40.00th=[ 10159], 50.00th=[ 14353], 60.00th=[ 18220], | 70.00th=[ 22676], 80.00th=[ 30540], 90.00th=[ 39060], 95.00th=[ 47973], | 99.00th=[ 70779], 99.50th=[ 79168], 99.90th=[115868], 99.95th=[683672], | 99.99th=[683672] bw ( KiB/s): min= 16, max= 168, per=26.22%, avg=98.33, stdev=28.63, samples=127 iops : min= 4, max= 42, avg=24.07, stdev= 7.20, samples=127 lat (usec) : 50=0.36%, 100=0.68%, 250=0.29%, 500=0.03%, 1000=0.03% lat (msec) : 2=3.52%, 4=8.89%, 10=10.03%, 20=31.48%, 50=41.02% lat (msec) : 100=3.55%, 250=0.10%, 750=0.03% cpu : usr=0.11%, sys=14.88%, ctx=7808, majf=0, minf=20 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187979: Thu Jun 11 17:35:50 2026 read: IOPS=23, BW=93.6KiB/s (95.8kB/s)(6028KiB/64409msec) clat (usec): min=32, max=110325, avg=23216.25, stdev=13921.02 lat (usec): min=33, max=110326, avg=23217.49, stdev=13921.04 clat percentiles (usec): | 1.00th=[ 56], 5.00th=[ 7635], 10.00th=[ 10290], 20.00th=[ 13173], | 30.00th=[ 15401], 40.00th=[ 17695], 50.00th=[ 20579], 60.00th=[ 23725], | 70.00th=[ 27395], 80.00th=[ 31851], 90.00th=[ 39584], 95.00th=[ 46924], | 99.00th=[ 70779], 99.50th=[ 88605], 99.90th=[109577], 99.95th=[110625], | 99.99th=[110625] bw ( KiB/s): min= 16, max= 160, per=26.05%, avg=93.27, stdev=26.06, samples=128 iops : min= 4, max= 40, avg=22.80, stdev= 6.54, samples=128 write: IOPS=24, BW=97.2KiB/s (99.5kB/s)(6260KiB/64409msec); 0 zone resets clat (usec): min=708, max=677765, avg=18626.47, stdev=23034.64 lat (usec): min=709, max=677766, avg=18627.72, stdev=23034.67 clat percentiles (usec): | 1.00th=[ 1237], 5.00th=[ 1844], 10.00th=[ 2442], 20.00th=[ 3556], | 30.00th=[ 5997], 40.00th=[ 10421], 50.00th=[ 14353], 60.00th=[ 18744], | 70.00th=[ 23725], 80.00th=[ 30278], 90.00th=[ 40633], 95.00th=[ 49546], | 99.00th=[ 67634], 99.50th=[ 76022], 99.90th=[ 98042], 99.95th=[675283], | 99.99th=[675283] bw ( KiB/s): min= 8, max= 176, per=25.81%, avg=96.80, stdev=29.48, samples=128 iops : min= 2, max= 44, avg=23.69, stdev= 7.38, samples=128 lat (usec) : 50=0.33%, 100=1.14%, 250=0.49%, 500=0.07%, 750=0.03% lat (usec) : 1000=0.10% lat (msec) : 2=3.06%, 4=8.43%, 10=10.90%, 20=31.02%, 50=39.81% lat (msec) : 100=4.43%, 250=0.16%, 750=0.03% cpu : usr=0.09%, sys=14.59%, ctx=7748, majf=0, minf=17 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187980: Thu Jun 11 17:35:50 2026 read: IOPS=22, BW=90.9KiB/s (93.0kB/s)(6052KiB/66602msec) clat (usec): min=47, max=693886, avg=24382.02, stdev=21976.00 lat (usec): min=48, max=693886, avg=24383.20, stdev=21976.05 clat percentiles (usec): | 1.00th=[ 75], 5.00th=[ 8455], 10.00th=[ 10552], 20.00th=[ 13173], | 30.00th=[ 15795], 40.00th=[ 18482], 50.00th=[ 21627], 60.00th=[ 24773], | 70.00th=[ 28181], 80.00th=[ 33817], 90.00th=[ 40633], 95.00th=[ 47973], | 99.00th=[ 69731], 99.50th=[ 84411], 99.90th=[116917], 99.95th=[692061], | 99.99th=[692061] bw ( KiB/s): min= 8, max= 174, per=25.29%, avg=90.53, stdev=26.18, samples=132 iops : min= 2, max= 43, avg=22.11, stdev= 6.49, samples=132 write: IOPS=23, BW=93.6KiB/s (95.9kB/s)(6236KiB/66602msec); 0 zone resets clat (usec): min=1012, max=138663, avg=18887.98, stdev=17143.30 lat (usec): min=1013, max=138663, avg=18890.45, stdev=17142.10 clat percentiles (usec): | 1.00th=[ 1270], 5.00th=[ 1860], 10.00th=[ 2573], 20.00th=[ 3687], | 30.00th=[ 6390], 40.00th=[ 10552], 50.00th=[ 14353], 60.00th=[ 18220], | 70.00th=[ 23987], 80.00th=[ 31851], 90.00th=[ 42206], 95.00th=[ 52167], | 99.00th=[ 71828], 99.50th=[ 80217], 99.90th=[113771], 99.95th=[139461], | 99.99th=[139461] bw ( KiB/s): min= 31, max= 176, per=24.99%, avg=93.69, stdev=28.30, samples=131 iops : min= 7, max= 44, avg=22.90, stdev= 7.11, samples=131 lat (usec) : 50=0.03%, 100=0.91%, 250=0.62% lat (msec) : 2=2.96%, 4=8.07%, 10=11.04%, 20=30.96%, 50=40.33% lat (msec) : 100=4.85%, 250=0.20%, 750=0.03% cpu : usr=0.12%, sys=14.35%, ctx=7989, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=359KiB/s (367kB/s), 89.6KiB/s-93.6KiB/s (91.7kB/s-95.8kB/s), io=23.4MiB (24.6MB), run=64062-66908msec WRITE: bw=376KiB/s (385kB/s), 93.6KiB/s-99.1KiB/s (95.9kB/s-101kB/s), io=24.6MiB (25.7MB), run=64062-66908msec rand-rw: (groupid=0, jobs=1): err= 0: pid=187982: Thu Jun 11 17:36:08 2026 read: IOPS=17, BW=70.8KiB/s (72.5kB/s)(5992KiB/84677msec) clat (msec): min=3, max=724, avg=23.26, stdev=26.16 lat (msec): min=3, max=724, avg=23.27, stdev=26.16 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 34], 90.00th=[ 47], 95.00th=[ 64], | 99.00th=[ 93], 99.50th=[ 111], 99.90th=[ 148], 99.95th=[ 726], | 99.99th=[ 726] bw ( KiB/s): min= 8, max= 215, per=25.06%, avg=70.92, stdev=43.11, samples=167 iops : min= 2, max= 53, avg=17.22, stdev=10.84, samples=167 write: IOPS=18, BW=74.4KiB/s (76.1kB/s)(6296KiB/84677msec); 0 zone resets clat (msec): min=7, max=167, avg=31.61, stdev=20.34 lat (msec): min=7, max=167, avg=31.61, stdev=20.34 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 38], 80.00th=[ 47], 90.00th=[ 58], 95.00th=[ 71], | 99.00th=[ 107], 99.50th=[ 117], 99.90th=[ 159], 99.95th=[ 169], | 99.99th=[ 169] bw ( KiB/s): min= 23, max= 207, per=25.16%, avg=74.49, stdev=40.41, samples=167 iops : min= 5, max= 51, avg=18.12, stdev=10.16, samples=167 lat (msec) : 4=0.07%, 10=12.24%, 20=36.07%, 50=39.06%, 100=11.52% lat (msec) : 250=1.01%, 750=0.03% cpu : usr=0.09%, sys=6.54%, ctx=5784, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1498,1574,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187983: Thu Jun 11 17:36:08 2026 read: IOPS=17, BW=70.4KiB/s (72.1kB/s)(5940KiB/84420msec) clat (msec): min=3, max=697, avg=22.62, stdev=25.01 lat (msec): min=3, max=697, avg=22.62, stdev=25.01 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 19], | 70.00th=[ 24], 80.00th=[ 32], 90.00th=[ 48], 95.00th=[ 59], | 99.00th=[ 91], 99.50th=[ 110], 99.90th=[ 128], 99.95th=[ 701], | 99.99th=[ 701] bw ( KiB/s): min= 15, max= 208, per=24.90%, avg=70.46, stdev=43.42, samples=166 iops : min= 3, max= 52, avg=17.11, stdev=10.90, samples=166 write: IOPS=18, BW=75.2KiB/s (77.0kB/s)(6348KiB/84420msec); 0 zone resets clat (msec): min=7, max=155, avg=31.98, stdev=21.15 lat (msec): min=7, max=155, avg=31.98, stdev=21.15 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 46], 90.00th=[ 61], 95.00th=[ 75], | 99.00th=[ 105], 99.50th=[ 122], 99.90th=[ 153], 99.95th=[ 157], | 99.99th=[ 157] bw ( KiB/s): min= 23, max= 231, per=25.42%, avg=75.23, stdev=40.52, samples=166 iops : min= 5, max= 57, avg=18.30, stdev=10.17, samples=166 lat (msec) : 4=0.07%, 10=12.17%, 20=36.00%, 50=39.19%, 100=11.59% lat (msec) : 250=0.94%, 750=0.03% cpu : usr=0.10%, sys=6.51%, ctx=5510, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1485,1587,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187984: Thu Jun 11 17:36:08 2026 read: IOPS=17, BW=71.2KiB/s (72.0kB/s)(6028KiB/84613msec) clat (msec): min=3, max=149, avg=22.69, stdev=19.13 lat (msec): min=3, max=149, avg=22.70, stdev=19.13 clat percentiles (msec): | 1.00th=[ 5], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 12], 40.00th=[ 14], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 24], 80.00th=[ 33], 90.00th=[ 51], 95.00th=[ 64], | 99.00th=[ 94], 99.50th=[ 107], 99.90th=[ 144], 99.95th=[ 150], | 99.99th=[ 150] bw ( KiB/s): min= 15, max= 255, per=25.23%, avg=71.39, stdev=41.38, samples=167 iops : min= 3, max= 63, avg=17.34, stdev=10.39, samples=167 write: IOPS=18, BW=73.0KiB/s (75.8kB/s)(6260KiB/84613msec); 0 zone resets clat (msec): min=7, max=668, avg=32.15, stdev=26.10 lat (msec): min=7, max=668, avg=32.15, stdev=26.10 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 37], 80.00th=[ 46], 90.00th=[ 59], 95.00th=[ 72], | 99.00th=[ 114], 99.50th=[ 122], 99.90th=[ 150], 99.95th=[ 667], | 99.99th=[ 667] bw ( KiB/s): min= 23, max= 208, per=25.04%, avg=74.11, stdev=40.41, samples=167 iops : min= 5, max= 52, avg=18.02, stdev=10.15, samples=167 lat (msec) : 4=0.03%, 10=11.91%, 20=37.43%, 50=37.11%, 100=12.27% lat (msec) : 250=1.20%, 750=0.03% cpu : usr=0.09%, sys=6.62%, ctx=5640, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1507,1565,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=187985: Thu Jun 11 17:36:08 2026 read: IOPS=17, BW=71.5KiB/s (73.2kB/s)(6052KiB/84611msec) clat (msec): min=3, max=134, avg=22.17, stdev=16.86 lat (msec): min=3, max=134, avg=22.17, stdev=16.86 clat percentiles (msec): | 1.00th=[ 6], 5.00th=[ 7], 10.00th=[ 8], 20.00th=[ 10], | 30.00th=[ 13], 40.00th=[ 15], 50.00th=[ 17], 60.00th=[ 20], | 70.00th=[ 25], 80.00th=[ 32], 90.00th=[ 46], 95.00th=[ 58], | 99.00th=[ 80], 99.50th=[ 90], 99.90th=[ 110], 99.95th=[ 136], | 99.99th=[ 136] bw ( KiB/s): min= 8, max= 255, per=25.49%, avg=72.14, stdev=40.76, samples=166 iops : min= 2, max= 63, avg=17.54, stdev=10.22, samples=166 write: IOPS=18, BW=73.7KiB/s (75.5kB/s)(6236KiB/84611msec); 0 zone resets clat (msec): min=6, max=690, avg=32.70, stdev=26.90 lat (msec): min=6, max=690, avg=32.70, stdev=26.90 clat percentiles (msec): | 1.00th=[ 10], 5.00th=[ 12], 10.00th=[ 13], 20.00th=[ 16], | 30.00th=[ 19], 40.00th=[ 22], 50.00th=[ 26], 60.00th=[ 31], | 70.00th=[ 39], 80.00th=[ 47], 90.00th=[ 63], 95.00th=[ 73], | 99.00th=[ 114], 99.50th=[ 127], 99.90th=[ 153], 99.95th=[ 693], | 99.99th=[ 693] bw ( KiB/s): min= 15, max= 223, per=24.98%, avg=73.93, stdev=39.83, samples=167 iops : min= 3, max= 55, avg=17.98, stdev=10.01, samples=167 lat (msec) : 4=0.10%, 10=11.23%, 20=37.76%, 50=37.92%, 100=11.95% lat (msec) : 250=1.01%, 750=0.03% cpu : usr=0.07%, sys=6.62%, ctx=5509, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1513,1559,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=284KiB/s (290kB/s), 70.4KiB/s-71.5KiB/s (72.1kB/s-73.2kB/s), io=23.4MiB (24.6MB), run=84420-84677msec WRITE: bw=297KiB/s (304kB/s), 73.7KiB/s-75.2KiB/s (75.5kB/s-77.0kB/s), io=24.6MiB (25.7MB), run=84420-84677msec mix direct rw 16384 by fio with 4 jobs... mix buffer rw 16384 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 16.0KiB-16.0KiB, (W) 16.0KiB-16.0KiB, (T) 16.0KiB-16.0KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=188016: Thu Jun 11 17:36:34 2026 read: IOPS=19, BW=317KiB/s (325kB/s)(5920KiB/18663msec) clat (usec): min=49, max=94798, avg=26462.06, stdev=15968.45 lat (usec): min=50, max=94799, avg=26463.08, stdev=15968.45 clat percentiles (usec): | 1.00th=[ 61], 5.00th=[ 118], 10.00th=[10421], 20.00th=[14484], | 30.00th=[18220], 40.00th=[21627], 50.00th=[24249], 60.00th=[27395], | 70.00th=[31065], 80.00th=[37487], 90.00th=[45351], 95.00th=[56361], | 99.00th=[86508], 99.50th=[86508], 99.90th=[94897], 99.95th=[94897], | 99.99th=[94897] bw ( KiB/s): min= 156, max= 634, per=25.18%, avg=314.47, stdev=104.51, samples=36 iops : min= 9, max= 39, avg=19.00, stdev= 6.59, samples=36 write: IOPS=21, BW=341KiB/s (349kB/s)(6368KiB/18663msec); 0 zone resets clat (usec): min=1617, max=123122, avg=21995.05, stdev=18497.49 lat (usec): min=1619, max=123124, avg=21997.14, stdev=18497.36 clat percentiles (usec): | 1.00th=[ 1958], 5.00th=[ 2638], 10.00th=[ 3884], 20.00th=[ 5932], | 30.00th=[ 10159], 40.00th=[ 13435], 50.00th=[ 16712], 60.00th=[ 21365], | 70.00th=[ 27395], 80.00th=[ 35390], 90.00th=[ 45876], 95.00th=[ 54264], | 99.00th=[ 83362], 99.50th=[104334], 99.90th=[123208], 99.95th=[123208], | 99.99th=[123208] bw ( KiB/s): min= 127, max= 573, per=26.07%, avg=342.58, stdev=105.95, samples=36 iops : min= 7, max= 35, avg=20.78, stdev= 6.65, samples=36 lat (usec) : 50=0.13%, 100=1.95%, 250=1.17%, 1000=0.13% lat (msec) : 2=0.91%, 4=4.95%, 10=10.29%, 20=27.21%, 50=45.83% lat (msec) : 100=7.16%, 250=0.26% cpu : usr=0.08%, sys=15.63%, ctx=2241, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188017: Thu Jun 11 17:36:34 2026 read: IOPS=18, BW=300KiB/s (307kB/s)(5744KiB/19142msec) clat (usec): min=40, max=90001, avg=27608.16, stdev=15091.07 lat (usec): min=41, max=90001, avg=27611.78, stdev=15089.63 clat percentiles (usec): | 1.00th=[ 53], 5.00th=[ 119], 10.00th=[12125], 20.00th=[15008], | 30.00th=[19006], 40.00th=[22676], 50.00th=[26084], 60.00th=[29492], | 70.00th=[33162], 80.00th=[38536], 90.00th=[46924], 95.00th=[53740], | 99.00th=[70779], 99.50th=[86508], 99.90th=[89654], 99.95th=[89654], | 99.99th=[89654] bw ( KiB/s): min= 63, max= 416, per=23.99%, avg=299.65, stdev=77.93, samples=37 iops : min= 3, max= 26, avg=18.05, stdev= 4.97, samples=37 write: IOPS=21, BW=342KiB/s (350kB/s)(6544KiB/19142msec); 0 zone resets clat (usec): min=1258, max=98187, avg=22211.14, stdev=17980.46 lat (usec): min=1259, max=98189, avg=22213.11, stdev=17980.48 clat percentiles (usec): | 1.00th=[ 1827], 5.00th=[ 2638], 10.00th=[ 3621], 20.00th=[ 6063], | 30.00th=[ 9241], 40.00th=[13960], 50.00th=[17695], 60.00th=[22938], | 70.00th=[27919], 80.00th=[35390], 90.00th=[49021], 95.00th=[56361], | 99.00th=[80217], 99.50th=[86508], 99.90th=[98042], 99.95th=[98042], | 99.99th=[98042] bw ( KiB/s): min= 158, max= 512, per=25.53%, avg=335.49, stdev=94.55, samples=37 iops : min= 9, max= 32, avg=20.32, stdev= 6.06, samples=37 lat (usec) : 50=0.26%, 100=1.69%, 250=0.65% lat (msec) : 2=1.17%, 4=4.69%, 10=12.11%, 20=24.22%, 50=46.88% lat (msec) : 100=8.33% cpu : usr=0.07%, sys=15.41%, ctx=2270, majf=0, minf=15 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188018: Thu Jun 11 17:36:34 2026 read: IOPS=20, BW=326KiB/s (334kB/s)(6256KiB/19171msec) clat (usec): min=43, max=110979, avg=26503.80, stdev=15490.29 lat (usec): min=43, max=110981, avg=26505.77, stdev=15490.40 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 102], 10.00th=[ 10421], 20.00th=[ 15664], | 30.00th=[ 18482], 40.00th=[ 21103], 50.00th=[ 24773], 60.00th=[ 27919], | 70.00th=[ 32375], 80.00th=[ 37487], 90.00th=[ 46924], 95.00th=[ 53216], | 99.00th=[ 76022], 99.50th=[ 85459], 99.90th=[110625], 99.95th=[110625], | 99.99th=[110625] bw ( KiB/s): min= 96, max= 512, per=26.22%, avg=327.54, stdev=97.31, samples=37 iops : min= 6, max= 32, avg=19.81, stdev= 6.12, samples=37 write: IOPS=19, BW=315KiB/s (322kB/s)(6032KiB/19171msec); 0 zone resets clat (usec): min=1773, max=86883, avg=23038.77, stdev=18546.74 lat (usec): min=1774, max=86884, avg=23040.75, stdev=18546.79 clat percentiles (usec): | 1.00th=[ 1975], 5.00th=[ 3064], 10.00th=[ 4228], 20.00th=[ 6456], | 30.00th=[10290], 40.00th=[13698], 50.00th=[17695], 60.00th=[23200], | 70.00th=[30540], 80.00th=[36439], 90.00th=[47973], 95.00th=[61080], | 99.00th=[79168], 99.50th=[86508], 99.90th=[86508], 99.95th=[86508], | 99.99th=[86508] bw ( KiB/s): min= 159, max= 541, per=23.74%, avg=311.97, stdev=94.65, samples=37 iops : min= 9, max= 33, avg=18.84, stdev= 5.92, samples=37 lat (usec) : 50=0.52%, 100=1.69%, 250=1.56%, 500=0.13%, 750=0.13% lat (msec) : 2=0.65%, 4=3.65%, 10=10.55%, 20=25.26%, 50=47.66% lat (msec) : 100=8.07%, 250=0.13% cpu : usr=0.09%, sys=15.15%, ctx=2274, majf=0, minf=14 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188019: Thu Jun 11 17:36:34 2026 read: IOPS=20, BW=328KiB/s (336kB/s)(6032KiB/18382msec) clat (usec): min=45, max=136757, avg=25885.05, stdev=17977.85 lat (usec): min=46, max=136759, avg=25886.05, stdev=17977.91 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 90], 10.00th=[ 133], 20.00th=[ 14091], | 30.00th=[ 17171], 40.00th=[ 19792], 50.00th=[ 23200], 60.00th=[ 27657], | 70.00th=[ 31327], 80.00th=[ 38536], 90.00th=[ 46400], 95.00th=[ 57410], | 99.00th=[ 86508], 99.50th=[127402], 99.90th=[137364], 99.95th=[137364], | 99.99th=[137364] bw ( KiB/s): min= 127, max= 479, per=26.11%, avg=326.06, stdev=83.63, samples=36 iops : min= 7, max= 29, avg=19.72, stdev= 5.24, samples=36 write: IOPS=21, BW=340KiB/s (349kB/s)(6256KiB/18382msec); 0 zone resets clat (usec): min=1577, max=131930, avg=21970.23, stdev=18665.38 lat (usec): min=1578, max=131932, avg=21973.54, stdev=18664.37 clat percentiles (usec): | 1.00th=[ 1909], 5.00th=[ 2900], 10.00th=[ 4015], 20.00th=[ 6390], | 30.00th=[ 9110], 40.00th=[ 13304], 50.00th=[ 17695], 60.00th=[ 20841], | 70.00th=[ 26346], 80.00th=[ 35390], 90.00th=[ 46400], 95.00th=[ 54789], | 99.00th=[ 93848], 99.50th=[100140], 99.90th=[131597], 99.95th=[131597], | 99.99th=[131597] bw ( KiB/s): min= 158, max= 637, per=25.95%, avg=341.00, stdev=111.61, samples=36 iops : min= 9, max= 39, avg=20.67, stdev= 7.01, samples=36 lat (usec) : 50=0.52%, 100=2.73%, 250=2.21%, 750=0.26% lat (msec) : 2=0.65%, 4=4.43%, 10=12.24%, 20=26.17%, 50=43.23% lat (msec) : 100=7.16%, 250=0.39% cpu : usr=0.09%, sys=15.64%, ctx=2193, majf=0, minf=16 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=1249KiB/s (1279kB/s), 300KiB/s-328KiB/s (307kB/s-336kB/s), io=23.4MiB (24.5MB), run=18382-19171msec WRITE: bw=1314KiB/s (1346kB/s), 315KiB/s-342KiB/s (322kB/s-350kB/s), io=24.6MiB (25.8MB), run=18382-19171msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188011: Thu Jun 11 17:36:40 2026 read: IOPS=14, BW=235KiB/s (240kB/s)(5920KiB/25214msec) clat (msec): min=5, max=112, avg=26.08, stdev=20.08 lat (msec): min=5, max=112, avg=26.08, stdev=20.08 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 17], 50.00th=[ 18], 60.00th=[ 23], | 70.00th=[ 28], 80.00th=[ 39], 90.00th=[ 52], 95.00th=[ 70], | 99.00th=[ 104], 99.50th=[ 110], 99.90th=[ 113], 99.95th=[ 113], | 99.99th=[ 113] bw ( KiB/s): min= 31, max= 539, per=23.94%, avg=227.22, stdev=115.40, samples=49 iops : min= 1, max= 33, avg=13.49, stdev= 7.42, samples=49 write: IOPS=15, BW=253KiB/s (259kB/s)(6368KiB/25214msec); 0 zone resets clat (msec): min=10, max=142, avg=38.94, stdev=23.90 lat (msec): min=10, max=142, avg=38.95, stdev=23.90 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 28], 50.00th=[ 32], 60.00th=[ 37], | 70.00th=[ 45], 80.00th=[ 54], 90.00th=[ 68], 95.00th=[ 94], | 99.00th=[ 131], 99.50th=[ 136], 99.90th=[ 144], 99.95th=[ 144], | 99.99th=[ 144] bw ( KiB/s): min= 95, max= 512, per=24.94%, avg=249.18, stdev=104.93, samples=49 iops : min= 5, max= 32, avg=14.88, stdev= 6.78, samples=49 lat (msec) : 10=6.12%, 20=29.17%, 50=47.53%, 100=14.45%, 250=2.73% cpu : usr=0.08%, sys=6.04%, ctx=1405, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=370,398,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188012: Thu Jun 11 17:36:40 2026 read: IOPS=14, BW=230KiB/s (236kB/s)(5744KiB/24959msec) clat (msec): min=4, max=178, avg=27.78, stdev=22.00 lat (msec): min=4, max=178, avg=27.78, stdev=22.00 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 18], 50.00th=[ 20], 60.00th=[ 24], | 70.00th=[ 30], 80.00th=[ 40], 90.00th=[ 58], 95.00th=[ 74], | 99.00th=[ 106], 99.50th=[ 112], 99.90th=[ 180], 99.95th=[ 180], | 99.99th=[ 180] bw ( KiB/s): min= 95, max= 640, per=24.03%, avg=228.00, stdev=115.14, samples=49 iops : min= 5, max= 40, avg=13.55, stdev= 7.41, samples=49 write: IOPS=16, BW=262KiB/s (268kB/s)(6544KiB/24959msec); 0 zone resets clat (msec): min=11, max=134, avg=36.46, stdev=20.10 lat (msec): min=11, max=134, avg=36.46, stdev=20.10 clat percentiles (msec): | 1.00th=[ 14], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 35], | 70.00th=[ 42], 80.00th=[ 51], 90.00th=[ 66], 95.00th=[ 77], | 99.00th=[ 103], 99.50th=[ 105], 99.90th=[ 134], 99.95th=[ 134], | 99.99th=[ 134] bw ( KiB/s): min= 93, max= 576, per=25.98%, avg=259.55, stdev=120.39, samples=49 iops : min= 5, max= 36, avg=15.51, stdev= 7.76, samples=49 lat (msec) : 10=4.30%, 20=29.04%, 50=49.48%, 100=15.89%, 250=1.30% cpu : usr=0.08%, sys=5.92%, ctx=1399, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=359,409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188013: Thu Jun 11 17:36:40 2026 read: IOPS=15, BW=248KiB/s (254kB/s)(6256KiB/25204msec) clat (msec): min=5, max=173, avg=27.09, stdev=22.17 lat (msec): min=5, max=173, avg=27.10, stdev=22.17 clat percentiles (msec): | 1.00th=[ 7], 5.00th=[ 9], 10.00th=[ 11], 20.00th=[ 13], | 30.00th=[ 15], 40.00th=[ 17], 50.00th=[ 20], 60.00th=[ 22], | 70.00th=[ 27], 80.00th=[ 39], 90.00th=[ 58], 95.00th=[ 75], | 99.00th=[ 107], 99.50th=[ 118], 99.90th=[ 174], 99.95th=[ 174], | 99.99th=[ 174] bw ( KiB/s): min= 62, max= 623, per=25.87%, avg=245.55, stdev=130.83, samples=49 iops : min= 3, max= 38, avg=14.63, stdev= 8.32, samples=49 write: IOPS=14, BW=239KiB/s (245kB/s)(6032KiB/25204msec); 0 zone resets clat (msec): min=9, max=165, avg=38.67, stdev=23.65 lat (msec): min=9, max=165, avg=38.67, stdev=23.65 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 15], 10.00th=[ 18], 20.00th=[ 21], | 30.00th=[ 24], 40.00th=[ 27], 50.00th=[ 31], 60.00th=[ 36], | 70.00th=[ 44], 80.00th=[ 57], 90.00th=[ 74], 95.00th=[ 83], | 99.00th=[ 115], 99.50th=[ 133], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 95, max= 544, per=23.15%, avg=231.27, stdev=109.62, samples=49 iops : min= 5, max= 34, avg=13.73, stdev= 7.08, samples=49 lat (msec) : 10=4.69%, 20=33.46%, 50=43.23%, 100=16.93%, 250=1.69% cpu : usr=0.08%, sys=5.76%, ctx=1400, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=391,377,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188014: Thu Jun 11 17:36:40 2026 read: IOPS=15, BW=241KiB/s (246kB/s)(6032KiB/25076msec) clat (msec): min=6, max=151, avg=25.91, stdev=21.17 lat (msec): min=6, max=151, avg=25.91, stdev=21.17 clat percentiles (msec): | 1.00th=[ 8], 5.00th=[ 9], 10.00th=[ 10], 20.00th=[ 12], | 30.00th=[ 14], 40.00th=[ 16], 50.00th=[ 18], 60.00th=[ 21], | 70.00th=[ 28], 80.00th=[ 36], 90.00th=[ 53], 95.00th=[ 74], | 99.00th=[ 104], 99.50th=[ 133], 99.90th=[ 153], 99.95th=[ 153], | 99.99th=[ 153] bw ( KiB/s): min= 64, max= 512, per=25.08%, avg=238.00, stdev=125.97, samples=49 iops : min= 4, max= 32, avg=14.18, stdev= 8.03, samples=49 write: IOPS=15, BW=249KiB/s (255kB/s)(6256KiB/25076msec); 0 zone resets clat (msec): min=10, max=166, avg=39.01, stdev=22.59 lat (msec): min=10, max=166, avg=39.02, stdev=22.59 clat percentiles (msec): | 1.00th=[ 13], 5.00th=[ 16], 10.00th=[ 18], 20.00th=[ 22], | 30.00th=[ 26], 40.00th=[ 29], 50.00th=[ 33], 60.00th=[ 38], | 70.00th=[ 44], 80.00th=[ 55], 90.00th=[ 68], 95.00th=[ 85], | 99.00th=[ 131], 99.50th=[ 142], 99.90th=[ 167], 99.95th=[ 167], | 99.99th=[ 167] bw ( KiB/s): min= 31, max= 476, per=24.71%, avg=246.82, stdev=106.09, samples=49 iops : min= 1, max= 29, avg=14.71, stdev= 6.83, samples=49 lat (msec) : 10=5.34%, 20=29.95%, 50=47.14%, 100=15.49%, 250=2.08% cpu : usr=0.07%, sys=6.03%, ctx=1472, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=377,391,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=950KiB/s (973kB/s), 230KiB/s-248KiB/s (236kB/s-254kB/s), io=23.4MiB (24.5MB), run=24959-25214msec WRITE: bw=999KiB/s (1023kB/s), 239KiB/s-262KiB/s (245kB/s-268kB/s), io=24.6MiB (25.8MB), run=24959-25214msec mix direct rw 1048576 by fio with 4 jobs... mix buffer rw 1048576 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 1024KiB-1024KiB, (W) 1024KiB-1024KiB, (T) 1024KiB-1024KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=188030: Thu Jun 11 17:36:48 2026 read: IOPS=2, BW=2412KiB/s (2470kB/s)(7168KiB/2972msec) clat (usec): min=517, max=1299.7k, avg=274178.74, stdev=454837.21 lat (usec): min=518, max=1299.7k, avg=274180.03, stdev=454837.12 clat percentiles (usec): | 1.00th=[ 519], 5.00th=[ 519], 10.00th=[ 519], | 20.00th=[ 102237], 30.00th=[ 104334], 40.00th=[ 104334], | 50.00th=[ 128451], 60.00th=[ 132645], 70.00th=[ 132645], | 80.00th=[ 149947], 90.00th=[1300235], 95.00th=[1300235], | 99.00th=[1300235], 99.50th=[1300235], 99.90th=[1300235], | 99.95th=[1300235], 99.99th=[1300235] bw ( KiB/s): min= 1914, max= 6144, per=72.50%, avg=3850.67, stdev=2137.44, samples=3 iops : min= 1, max= 6, avg= 3.33, stdev= 2.52, samples=3 write: IOPS=1, BW=1723KiB/s (1764kB/s)(5120KiB/2972msec); 0 zone resets clat (msec): min=106, max=400, avg=203.93, stdev=123.59 lat (msec): min=106, max=400, avg=205.09, stdev=122.67 clat percentiles (msec): | 1.00th=[ 107], 5.00th=[ 107], 10.00th=[ 107], 20.00th=[ 107], | 30.00th=[ 120], 40.00th=[ 120], 50.00th=[ 144], 60.00th=[ 144], | 70.00th=[ 251], 80.00th=[ 251], 90.00th=[ 401], 95.00th=[ 401], | 99.00th=[ 401], 99.50th=[ 401], 99.90th=[ 401], 99.95th=[ 401], | 99.99th=[ 401] bw ( KiB/s): min= 2048, max= 5742, per=52.39%, avg=3895.00, stdev=2612.05, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 lat (usec) : 750=8.33% lat (msec) : 250=75.00%, 500=8.33%, 2000=8.33% cpu : usr=0.00%, sys=32.82%, ctx=510, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188031: Thu Jun 11 17:36:48 2026 read: IOPS=0, BW=531KiB/s (544kB/s)(2048KiB/3856msec) clat (usec): min=567, max=134270, avg=67419.32, stdev=94542.09 lat (usec): min=569, max=134272, avg=67420.93, stdev=94542.71 clat percentiles (usec): | 1.00th=[ 570], 5.00th=[ 570], 10.00th=[ 570], 20.00th=[ 570], | 30.00th=[ 570], 40.00th=[ 570], 50.00th=[ 570], 60.00th=[135267], | 70.00th=[135267], 80.00th=[135267], 90.00th=[135267], 95.00th=[135267], | 99.00th=[135267], 99.50th=[135267], 99.90th=[135267], 99.95th=[135267], | 99.99th=[135267] bw ( KiB/s): min= 1678, max= 1996, per=34.59%, avg=1837.00, stdev=224.86, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2656KiB/s (2719kB/s)(10.0MiB/3856msec); 0 zone resets clat (msec): min=88, max=1619, avg=369.63, stdev=457.78 lat (msec): min=88, max=1619, avg=369.71, stdev=457.77 clat percentiles (msec): | 1.00th=[ 89], 5.00th=[ 89], 10.00th=[ 89], 20.00th=[ 113], | 30.00th=[ 133], 40.00th=[ 148], 50.00th=[ 205], 60.00th=[ 228], | 70.00th=[ 262], 80.00th=[ 426], 90.00th=[ 477], 95.00th=[ 1620], | 99.00th=[ 1620], 99.50th=[ 1620], 99.90th=[ 1620], 99.95th=[ 1620], | 99.99th=[ 1620] bw ( KiB/s): min= 3992, max= 8192, per=82.11%, avg=6105.00, stdev=2100.12, samples=3 iops : min= 3, max= 8, avg= 5.33, stdev= 2.52, samples=3 lat (usec) : 750=8.33% lat (msec) : 100=8.33%, 250=50.00%, 500=25.00%, 2000=8.33% cpu : usr=0.00%, sys=26.23%, ctx=173, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188032: Thu Jun 11 17:36:48 2026 read: IOPS=1, BW=1746KiB/s (1788kB/s)(6144KiB/3519msec) clat (usec): min=364, max=164637, avg=95650.29, stdev=77760.08 lat (usec): min=365, max=164637, avg=95651.43, stdev=77760.01 clat percentiles (usec): | 1.00th=[ 363], 5.00th=[ 363], 10.00th=[ 363], 20.00th=[ 529], | 30.00th=[ 529], 40.00th=[ 96994], 50.00th=[ 96994], 60.00th=[149947], | 70.00th=[162530], 80.00th=[162530], 90.00th=[164627], 95.00th=[164627], | 99.00th=[164627], 99.50th=[164627], 99.90th=[164627], 99.95th=[164627], | 99.99th=[164627] bw ( KiB/s): min= 3828, max= 3992, per=73.62%, avg=3910.00, stdev=115.97, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1746KiB/s (1788kB/s)(6144KiB/3519msec); 0 zone resets clat (msec): min=108, max=1782, avg=478.02, stdev=650.66 lat (msec): min=108, max=1782, avg=478.08, stdev=650.67 clat percentiles (msec): | 1.00th=[ 109], 5.00th=[ 109], 10.00th=[ 109], 20.00th=[ 121], | 30.00th=[ 121], 40.00th=[ 146], 50.00th=[ 146], 60.00th=[ 284], | 70.00th=[ 430], 80.00th=[ 430], 90.00th=[ 1787], 95.00th=[ 1787], | 99.00th=[ 1787], 99.50th=[ 1787], 99.90th=[ 1787], 99.95th=[ 1787], | 99.99th=[ 1787] bw ( KiB/s): min= 1914, max= 3992, per=42.09%, avg=3129.33, stdev=1082.96, samples=3 iops : min= 1, max= 3, avg= 2.33, stdev= 1.15, samples=3 lat (usec) : 500=8.33%, 750=8.33% lat (msec) : 100=8.33%, 250=50.00%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=26.12%, ctx=138, majf=0, minf=11 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188033: Thu Jun 11 17:36:48 2026 read: IOPS=1, BW=1578KiB/s (1616kB/s)(5120KiB/3244msec) clat (usec): min=574, max=223401, avg=103605.81, stdev=80531.55 lat (usec): min=575, max=223403, avg=103608.74, stdev=80532.06 clat percentiles (usec): | 1.00th=[ 578], 5.00th=[ 578], 10.00th=[ 578], 20.00th=[ 578], | 30.00th=[ 74974], 40.00th=[ 74974], 50.00th=[104334], 60.00th=[104334], | 70.00th=[115868], 80.00th=[115868], 90.00th=[223347], 95.00th=[223347], | 99.00th=[223347], 99.50th=[223347], 99.90th=[223347], 99.95th=[223347], | 99.99th=[223347] bw ( KiB/s): min= 2048, max= 5742, per=73.34%, avg=3895.00, stdev=2612.05, samples=2 iops : min= 2, max= 5, avg= 3.50, stdev= 2.12, samples=2 write: IOPS=2, BW=2210KiB/s (2263kB/s)(7168KiB/3244msec); 0 zone resets clat (msec): min=80, max=1408, avg=380.40, stdev=464.53 lat (msec): min=80, max=1408, avg=380.48, stdev=464.53 clat percentiles (msec): | 1.00th=[ 81], 5.00th=[ 81], 10.00th=[ 81], 20.00th=[ 122], | 30.00th=[ 169], 40.00th=[ 169], 50.00th=[ 220], 60.00th=[ 288], | 70.00th=[ 288], 80.00th=[ 380], 90.00th=[ 1401], 95.00th=[ 1401], | 99.00th=[ 1401], 99.50th=[ 1401], 99.90th=[ 1401], 99.95th=[ 1401], | 99.99th=[ 1401] bw ( KiB/s): min= 1718, max= 6144, per=46.29%, avg=3442.00, stdev=2074.47, samples=4 iops : min= 1, max= 6, avg= 2.75, stdev= 2.36, samples=4 lat (usec) : 750=8.33% lat (msec) : 100=16.67%, 250=50.00%, 500=16.67%, 2000=8.33% cpu : usr=0.00%, sys=30.43%, ctx=361, majf=0, minf=13 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=5311KiB/s (5439kB/s), 531KiB/s-2412KiB/s (544kB/s-2470kB/s), io=20.0MiB (20.0MB), run=2972-3856msec WRITE: bw=7436KiB/s (7614kB/s), 1723KiB/s-2656KiB/s (1764kB/s-2719kB/s), io=28.0MiB (29.4MB), run=2972-3856msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188035: Thu Jun 11 17:36:49 2026 read: IOPS=1, BW=1735KiB/s (1776kB/s)(7168KiB/4132msec) clat (msec): min=73, max=1693, avg=445.78, stdev=571.23 lat (msec): min=73, max=1693, avg=445.78, stdev=571.23 clat percentiles (msec): | 1.00th=[ 73], 5.00th=[ 73], 10.00th=[ 73], 20.00th=[ 85], | 30.00th=[ 178], 40.00th=[ 178], 50.00th=[ 234], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 510], 90.00th=[ 1687], 95.00th=[ 1687], | 99.00th=[ 1687], 99.50th=[ 1687], 99.90th=[ 1687], 99.95th=[ 1687], | 99.99th=[ 1687] bw ( KiB/s): min= 1872, max= 4063, per=50.91%, avg=2401.60, stdev=931.13, samples=5 iops : min= 1, max= 3, avg= 1.40, stdev= 0.89, samples=5 write: IOPS=1, BW=1239KiB/s (1269kB/s)(5120KiB/4132msec); 0 zone resets clat (msec): min=66, max=410, avg=183.72, stdev=143.76 lat (msec): min=66, max=410, avg=183.80, stdev=143.77 clat percentiles (msec): | 1.00th=[ 67], 5.00th=[ 67], 10.00th=[ 67], 20.00th=[ 67], | 30.00th=[ 75], 40.00th=[ 75], 50.00th=[ 130], 60.00th=[ 130], | 70.00th=[ 239], 80.00th=[ 239], 90.00th=[ 409], 95.00th=[ 409], | 99.00th=[ 409], 99.50th=[ 409], 99.90th=[ 409], 99.95th=[ 409], | 99.99th=[ 409] bw ( KiB/s): min= 2043, max= 8062, per=76.51%, avg=5052.50, stdev=4256.08, samples=2 iops : min= 1, max= 7, avg= 4.00, stdev= 4.24, samples=2 lat (msec) : 100=33.33%, 250=33.33%, 500=16.67%, 750=8.33%, 2000=8.33% cpu : usr=0.02%, sys=8.71%, ctx=87, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=7,5,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188036: Thu Jun 11 17:36:49 2026 read: IOPS=0, BW=484KiB/s (496kB/s)(2048KiB/4229msec) clat (msec): min=296, max=389, avg=342.97, stdev=65.38 lat (msec): min=296, max=389, avg=342.97, stdev=65.38 clat percentiles (msec): | 1.00th=[ 296], 5.00th=[ 296], 10.00th=[ 296], 20.00th=[ 296], | 30.00th=[ 296], 40.00th=[ 296], 50.00th=[ 296], 60.00th=[ 388], | 70.00th=[ 388], 80.00th=[ 388], 90.00th=[ 388], 95.00th=[ 388], | 99.00th=[ 388], 99.50th=[ 388], 99.90th=[ 388], 99.95th=[ 388], | 99.99th=[ 388] bw ( KiB/s): min= 1875, max= 2031, per=41.40%, avg=1953.00, stdev=110.31, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 write: IOPS=2, BW=2421KiB/s (2479kB/s)(10.0MiB/4229msec); 0 zone resets clat (msec): min=121, max=1642, avg=343.98, stdev=461.04 lat (msec): min=121, max=1642, avg=344.11, stdev=461.05 clat percentiles (msec): | 1.00th=[ 123], 5.00th=[ 123], 10.00th=[ 123], 20.00th=[ 126], | 30.00th=[ 153], 40.00th=[ 174], 50.00th=[ 194], 60.00th=[ 201], | 70.00th=[ 211], 80.00th=[ 292], 90.00th=[ 330], 95.00th=[ 1636], | 99.00th=[ 1636], 99.50th=[ 1636], 99.90th=[ 1636], 99.95th=[ 1636], | 99.99th=[ 1636] bw ( KiB/s): min= 2023, max= 6144, per=49.28%, avg=3254.40, stdev=1832.58, samples=5 iops : min= 1, max= 6, avg= 2.40, stdev= 2.19, samples=5 lat (msec) : 250=58.33%, 500=33.33%, 2000=8.33% cpu : usr=0.00%, sys=10.22%, ctx=109, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=2,10,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188037: Thu Jun 11 17:36:49 2026 read: IOPS=1, BW=1466KiB/s (1501kB/s)(6144KiB/4191msec) clat (msec): min=61, max=211, avg=121.00, stdev=60.59 lat (msec): min=61, max=211, avg=121.00, stdev=60.59 clat percentiles (msec): | 1.00th=[ 62], 5.00th=[ 62], 10.00th=[ 62], 20.00th=[ 82], | 30.00th=[ 82], 40.00th=[ 93], 50.00th=[ 93], 60.00th=[ 96], | 70.00th=[ 182], 80.00th=[ 182], 90.00th=[ 211], 95.00th=[ 211], | 99.00th=[ 211], 99.50th=[ 211], 99.90th=[ 211], 99.95th=[ 211], | 99.99th=[ 211] bw ( KiB/s): min= 4031, max= 4063, per=85.80%, avg=4047.00, stdev=22.63, samples=2 iops : min= 3, max= 3, avg= 3.00, stdev= 0.00, samples=2 write: IOPS=1, BW=1466KiB/s (1501kB/s)(6144KiB/4191msec); 0 zone resets clat (msec): min=63, max=2416, avg=563.50, stdev=915.98 lat (msec): min=63, max=2417, avg=563.58, stdev=915.98 clat percentiles (msec): | 1.00th=[ 64], 5.00th=[ 64], 10.00th=[ 64], 20.00th=[ 140], | 30.00th=[ 140], 40.00th=[ 144], 50.00th=[ 144], 60.00th=[ 199], | 70.00th=[ 418], 80.00th=[ 418], 90.00th=[ 2433], 95.00th=[ 2433], | 99.00th=[ 2433], 99.50th=[ 2433], 99.90th=[ 2433], 99.95th=[ 2433], | 99.99th=[ 2433] bw ( KiB/s): min= 1928, max= 4063, per=38.06%, avg=2513.50, stdev=1034.24, samples=4 iops : min= 1, max= 3, avg= 1.75, stdev= 0.96, samples=4 lat (msec) : 100=41.67%, 250=41.67%, 500=8.33%, >=2000=8.33% cpu : usr=0.02%, sys=8.35%, ctx=144, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=6,6,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188038: Thu Jun 11 17:36:49 2026 read: IOPS=1, BW=1179KiB/s (1208kB/s)(5120KiB/4341msec) clat (msec): min=35, max=254, avg=132.54, stdev=98.57 lat (msec): min=35, max=254, avg=132.54, stdev=98.57 clat percentiles (msec): | 1.00th=[ 36], 5.00th=[ 36], 10.00th=[ 36], 20.00th=[ 36], | 30.00th=[ 70], 40.00th=[ 70], 50.00th=[ 82], 60.00th=[ 82], | 70.00th=[ 224], 80.00th=[ 224], 90.00th=[ 255], 95.00th=[ 255], | 99.00th=[ 255], 99.50th=[ 255], 99.90th=[ 255], 99.95th=[ 255], | 99.99th=[ 255] bw ( KiB/s): min= 6047, max= 6047, per=100.00%, avg=6047.00, stdev= 0.00, samples=1 iops : min= 5, max= 5, avg= 5.00, stdev= 0.00, samples=1 write: IOPS=1, BW=1651KiB/s (1691kB/s)(7168KiB/4341msec); 0 zone resets clat (msec): min=34, max=2260, avg=512.25, stdev=794.12 lat (msec): min=34, max=2260, avg=512.32, stdev=794.12 clat percentiles (msec): | 1.00th=[ 35], 5.00th=[ 35], 10.00th=[ 35], 20.00th=[ 42], | 30.00th=[ 72], 40.00th=[ 72], 50.00th=[ 279], 60.00th=[ 347], | 70.00th=[ 347], 80.00th=[ 558], 90.00th=[ 2265], 95.00th=[ 2265], | 99.00th=[ 2265], 99.50th=[ 2265], 99.90th=[ 2265], 99.95th=[ 2265], | 99.99th=[ 2265] bw ( KiB/s): min= 2043, max= 4063, per=41.16%, avg=2718.00, stdev=1164.81, samples=3 iops : min= 1, max= 3, avg= 2.00, stdev= 1.00, samples=3 lat (msec) : 50=25.00%, 100=25.00%, 250=8.33%, 500=25.00%, 750=8.33% lat (msec) : >=2000=8.33% cpu : usr=0.00%, sys=9.86%, ctx=131, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=5,7,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=4718KiB/s (4831kB/s), 484KiB/s-1735KiB/s (496kB/s-1776kB/s), io=20.0MiB (20.0MB), run=4132-4341msec WRITE: bw=6605KiB/s (6763kB/s), 1239KiB/s-2421KiB/s (1269kB/s-2479kB/s), io=28.0MiB (29.4MB), run=4132-4341msec mix direct rw 4194304 by fio with 4 jobs... mix buffer rw 4194304 by fio with 4 jobs... rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (g=0): rw=randrw, bs=(R) 4096KiB-4096KiB, (W) 4096KiB-4096KiB, (T) 4096KiB-4096KiB, ioengine=psync, iodepth=16 ... fio-3.19 Starting 4 processes rand-rw: (groupid=0, jobs=1): err= 0: pid=188043: Thu Jun 11 17:36:57 2026 read: IOPS=1, BW=6461KiB/s (6616kB/s)(12.0MiB/1902msec) clat (msec): min=304, max=978, avg=606.38, stdev=342.33 lat (msec): min=304, max=978, avg=606.38, stdev=342.33 clat percentiles (msec): | 1.00th=[ 305], 5.00th=[ 305], 10.00th=[ 305], 20.00th=[ 305], | 30.00th=[ 305], 40.00th=[ 535], 50.00th=[ 535], 60.00th=[ 535], | 70.00th=[ 978], 80.00th=[ 978], 90.00th=[ 978], 95.00th=[ 978], | 99.00th=[ 978], 99.50th=[ 978], 99.90th=[ 978], 99.95th=[ 978], | 99.99th=[ 978] bw ( KiB/s): min= 8110, max= 8192, per=94.63%, avg=8151.00, stdev=57.98, samples=2 iops : min= 1, max= 2, avg= 1.50, stdev= 0.71, samples=2 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=10.52%, ctx=67, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188044: Thu Jun 11 17:36:57 2026 read: IOPS=0, BW=2364KiB/s (2420kB/s)(4096KiB/1733msec) clat (nsec): min=585892k, max=585892k, avg=585892353.00, stdev= 0.00 lat (nsec): min=585895k, max=585895k, avg=585894516.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 584], 5.00th=[ 584], 10.00th=[ 584], 20.00th=[ 584], | 30.00th=[ 584], 40.00th=[ 584], 50.00th=[ 584], 60.00th=[ 584], | 70.00th=[ 584], 80.00th=[ 584], 90.00th=[ 584], 95.00th=[ 584], | 99.00th=[ 584], 99.50th=[ 584], 99.90th=[ 584], 99.95th=[ 584], | 99.99th=[ 584] bw ( KiB/s): min= 5704, max= 5704, per=66.22%, avg=5704.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4727KiB/s (4841kB/s)(8192KiB/1733msec); 0 zone resets clat (msec): min=511, max=606, avg=559.33, stdev=67.33 lat (msec): min=513, max=607, avg=560.53, stdev=66.28 clat percentiles (msec): | 1.00th=[ 514], 5.00th=[ 514], 10.00th=[ 514], 20.00th=[ 514], | 30.00th=[ 514], 40.00th=[ 514], 50.00th=[ 514], 60.00th=[ 609], | 70.00th=[ 609], 80.00th=[ 609], 90.00th=[ 609], 95.00th=[ 609], | 99.00th=[ 609], 99.50th=[ 609], 99.90th=[ 609], 99.95th=[ 609], | 99.99th=[ 609] bw ( KiB/s): min= 8110, max= 8110, per=42.89%, avg=8110.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 lat (msec) : 750=100.00% cpu : usr=0.06%, sys=14.43%, ctx=70, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188045: Thu Jun 11 17:36:57 2026 write: IOPS=4, BW=17.2MiB/s (18.1MB/s)(12.0MiB/696msec); 0 zone resets clat (msec): min=166, max=321, avg=224.88, stdev=84.37 lat (msec): min=167, max=322, avg=225.24, stdev=84.39 clat percentiles (msec): | 1.00th=[ 167], 5.00th=[ 167], 10.00th=[ 167], 20.00th=[ 167], | 30.00th=[ 167], 40.00th=[ 186], 50.00th=[ 186], 60.00th=[ 186], | 70.00th=[ 321], 80.00th=[ 321], 90.00th=[ 321], 95.00th=[ 321], | 99.00th=[ 321], 99.50th=[ 321], 99.90th=[ 321], 99.95th=[ 321], | 99.99th=[ 321] lat (msec) : 250=66.67%, 500=33.33% cpu : usr=0.00%, sys=24.17%, ctx=52, majf=0, minf=8 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188046: Thu Jun 11 17:36:57 2026 write: IOPS=1, BW=7310KiB/s (7485kB/s)(12.0MiB/1681msec); 0 zone resets clat (msec): min=144, max=1039, avg=550.90, stdev=453.21 lat (msec): min=144, max=1040, avg=551.19, stdev=453.26 clat percentiles (msec): | 1.00th=[ 144], 5.00th=[ 144], 10.00th=[ 144], 20.00th=[ 144], | 30.00th=[ 144], 40.00th=[ 468], 50.00th=[ 468], 60.00th=[ 468], | 70.00th=[ 1036], 80.00th=[ 1036], 90.00th=[ 1036], 95.00th=[ 1036], | 99.00th=[ 1036], 99.50th=[ 1036], 99.90th=[ 1036], 99.95th=[ 1036], | 99.99th=[ 1036] bw ( KiB/s): min=11652, max=11652, per=61.62%, avg=11652.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 250=33.33%, 500=33.33%, 2000=33.33% cpu : usr=0.00%, sys=11.73%, ctx=55, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=8614KiB/s (8821kB/s), 2364KiB/s-6461KiB/s (2420kB/s-6616kB/s), io=16.0MiB (16.8MB), run=1733-1902msec WRITE: bw=18.5MiB/s (19.4MB/s), 4727KiB/s-17.2MiB/s (4841kB/s-18.1MB/s), io=32.0MiB (33.6MB), run=696-1733msec rand-rw: (groupid=0, jobs=1): err= 0: pid=188048: Thu Jun 11 17:36:58 2026 read: IOPS=1, BW=7232KiB/s (7406kB/s)(12.0MiB/1699msec) clat (msec): min=520, max=556, avg=537.82, stdev=18.06 lat (msec): min=520, max=556, avg=537.82, stdev=18.06 clat percentiles (msec): | 1.00th=[ 518], 5.00th=[ 518], 10.00th=[ 518], 20.00th=[ 518], | 30.00th=[ 518], 40.00th=[ 542], 50.00th=[ 542], 60.00th=[ 542], | 70.00th=[ 558], 80.00th=[ 558], 90.00th=[ 558], 95.00th=[ 558], | 99.00th=[ 558], 99.50th=[ 558], 99.90th=[ 558], 99.95th=[ 558], | 99.99th=[ 558] bw ( KiB/s): min= 5885, max= 7728, per=78.73%, avg=6806.50, stdev=1303.20, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 750=100.00% cpu : usr=0.00%, sys=34.92%, ctx=821, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=3,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188049: Thu Jun 11 17:36:58 2026 read: IOPS=0, BW=2161KiB/s (2213kB/s)(4096KiB/1895msec) clat (nsec): min=531315k, max=531315k, avg=531315359.00, stdev= 0.00 lat (nsec): min=531318k, max=531318k, avg=531317586.00, stdev= 0.00 clat percentiles (msec): | 1.00th=[ 531], 5.00th=[ 531], 10.00th=[ 531], 20.00th=[ 531], | 30.00th=[ 531], 40.00th=[ 531], 50.00th=[ 531], 60.00th=[ 531], | 70.00th=[ 531], 80.00th=[ 531], 90.00th=[ 531], 95.00th=[ 531], | 99.00th=[ 531], 99.50th=[ 531], 99.90th=[ 531], 99.95th=[ 531], | 99.99th=[ 531] bw ( KiB/s): min= 5760, max= 5760, per=66.63%, avg=5760.00, stdev= 0.00, samples=1 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=1 write: IOPS=1, BW=4323KiB/s (4427kB/s)(8192KiB/1895msec); 0 zone resets clat (msec): min=476, max=801, avg=639.18, stdev=230.07 lat (msec): min=476, max=802, avg=639.52, stdev=230.11 clat percentiles (msec): | 1.00th=[ 477], 5.00th=[ 477], 10.00th=[ 477], 20.00th=[ 477], | 30.00th=[ 477], 40.00th=[ 477], 50.00th=[ 477], 60.00th=[ 802], | 70.00th=[ 802], 80.00th=[ 802], 90.00th=[ 802], 95.00th=[ 802], | 99.00th=[ 802], 99.50th=[ 802], 99.90th=[ 802], 99.95th=[ 802], | 99.99th=[ 802] bw ( KiB/s): min= 8192, max= 8192, per=55.55%, avg=8192.00, stdev= 0.00, samples=1 iops : min= 2, max= 2, avg= 2.00, stdev= 0.00, samples=1 lat (msec) : 500=33.33%, 750=33.33%, 1000=33.33% cpu : usr=0.00%, sys=13.31%, ctx=230, majf=0, minf=12 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=1,2,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188050: Thu Jun 11 17:36:58 2026 write: IOPS=1, BW=5530KiB/s (5663kB/s)(12.0MiB/2222msec); 0 zone resets clat (msec): min=117, max=1939, avg=730.24, stdev=1047.09 lat (msec): min=117, max=1939, avg=730.79, stdev=1046.87 clat percentiles (msec): | 1.00th=[ 117], 5.00th=[ 117], 10.00th=[ 117], 20.00th=[ 117], | 30.00th=[ 117], 40.00th=[ 136], 50.00th=[ 136], 60.00th=[ 136], | 70.00th=[ 1938], 80.00th=[ 1938], 90.00th=[ 1938], 95.00th=[ 1938], | 99.00th=[ 1938], 99.50th=[ 1938], 99.90th=[ 1938], 99.95th=[ 1938], | 99.99th=[ 1938] bw ( KiB/s): min=16384, max=16384, per=100.00%, avg=16384.00, stdev= 0.00, samples=1 iops : min= 4, max= 4, avg= 4.00, stdev= 0.00, samples=1 lat (msec) : 250=66.67%, 2000=33.33% cpu : usr=0.00%, sys=6.08%, ctx=48, majf=0, minf=9 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 rand-rw: (groupid=0, jobs=1): err= 0: pid=188051: Thu Jun 11 17:36:58 2026 write: IOPS=1, BW=6578KiB/s (6736kB/s)(12.0MiB/1868msec); 0 zone resets clat (msec): min=175, max=876, avg=612.04, stdev=380.88 lat (msec): min=176, max=877, avg=612.42, stdev=380.75 clat percentiles (msec): | 1.00th=[ 176], 5.00th=[ 176], 10.00th=[ 176], 20.00th=[ 176], | 30.00th=[ 176], 40.00th=[ 785], 50.00th=[ 785], 60.00th=[ 785], | 70.00th=[ 877], 80.00th=[ 877], 90.00th=[ 877], 95.00th=[ 877], | 99.00th=[ 877], 99.50th=[ 877], 99.90th=[ 877], 99.95th=[ 877], | 99.99th=[ 877] bw ( KiB/s): min= 5752, max= 7728, per=45.70%, avg=6740.00, stdev=1397.24, samples=2 iops : min= 1, max= 1, avg= 1.00, stdev= 0.00, samples=2 lat (msec) : 250=33.33%, 1000=66.67% cpu : usr=0.21%, sys=9.91%, ctx=67, majf=0, minf=10 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,3,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=16 Run status group 0 (all jobs): READ: bw=8646KiB/s (8853kB/s), 2161KiB/s-7232KiB/s (2213kB/s-7406kB/s), io=16.0MiB (16.8MB), run=1699-1895msec WRITE: bw=14.4MiB/s (15.1MB/s), 4323KiB/s-6578KiB/s (4427kB/s-6736kB/s), io=32.0MiB (33.6MB), run=1868-2222msec